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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Chained IRQ handlers support. * * Copyright (C) 2011 ARM Ltd. */ #ifndef __IRQCHIP_CHAINED_IRQ_H #define __IRQCHIP_CHAINED_IRQ_H #include <linux/irq.h> /* * Entry/exit functions for chained handlers where the primary IRQ chip * may implement either fasteoi or level-trigger flow control. */ static inline void chained_irq_enter(struct irq_chip *chip, struct irq_desc *desc) { /* FastEOI controllers require no action on entry. */ if (chip->irq_eoi) return; if (chip->irq_mask_ack) { chip->irq_mask_ack(&desc->irq_data); } else { chip->irq_mask(&desc->irq_data); if (chip->irq_ack) chip->irq_ack(&desc->irq_data); } } static inline void chained_irq_exit(struct irq_chip *chip, struct irq_desc *desc) { if (chip->irq_eoi) chip->irq_eoi(&desc->irq_data); else chip->irq_unmask(&desc->irq_data); } #endif /* __IRQCHIP_CHAINED_IRQ_H */